package com.baidu.ueditor.upload;

import com.baidu.ueditor.PathFormat;
import com.baidu.ueditor.define.AppInfo;
import com.baidu.ueditor.define.BaseState;
import com.baidu.ueditor.define.FileType;
import com.baidu.ueditor.define.State;

import java.util.Map;

import org.apache.commons.codec.binary.Base64;

public final class Base64Uploader {

  public static State save(String content, Map<String, Object> conf) {

    byte[] data = decode(content);

    long maxSize = ((Long) conf.get("maxSize")).longValue();

    if (!validSize(data, maxSize)) {
      return new BaseState(false, AppInfo.MAX_SIZE);
    }

    String suffix = FileType.getSuffix("JPG");

    String savePath = PathFormat.parse((String) conf.get("savePath"),
      (String) conf.get("filename"));

    savePath = savePath + suffix;
    String physicalPath = (String) conf.get("rootPath") + savePath;

    State storageState = StorageManager.saveBinaryFile(data, physicalPath);

    if (storageState.isSuccess()) {
      storageState.putInfo("url", PathFormat.format(savePath));
      storageState.putInfo("type", suffix);
      storageState.putInfo("original", "");
    }

    return storageState;
  }

  private static byte[] decode(String content) {
    return Base64.decodeBase64(content);
  }

  private static boolean validSize(byte[] data, long length) {
    return data.length <= length;
  }

}